Wear behavior analysis of Aisi440 martensitic steel by annealing and tempering process

Abstract

Experiments on the wear behavior of AISI440 steel were conducted and the specimens were subjected to annealing process, followed by tempering. AISI440 is a martensitic stainless steel which is used in many applications due to their hardness and wear resistance. AISI440 is subjected to Annealing and Tempering processes at different temperatures like 500, 600 and 7000C. The result showed a lath of martensite and retained austenite. After tempering the microstructure consists of mixtures of tempered martensite, carbides and reversed austenite dispersed in the martensite matrix obtaining the strength and toughness in the steel. The metallographic studies were compared with scanning electron microscope results.